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Finding the Fourth Proportional to 281,100.06, 387,939.13 and 160,244.22

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Solution

The fourth proportional to 281,100.06, 387,939.13 and 160,244.22 is: 221,149.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,100.06 : 387,939.13 = 160,244.22 : x
  2. Step 2: Convert to fraction form
    281,100.06/387,939.13 = 160,244.22/x
  3. Step 3: Cross multiply
    281,100.06x = 387,939.13 × 160,244.22
  4. Step 4: Simplify right side
    281,100.06x = 62,165,003,294.33
  5. Step 5: Solve for x
    x = 62,165,003,294.33/281,100.06
  6. Step 6: Final answer
    x = 221,149.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.